Optimization in Bridge Construction
These slides give an overview of some of the challenges in optimization of construction operations. As a public construction company, it’s important to understand the pulse of the construction industry…
Optimization in Oil & Gas
These slides give an overview of some of the challenges in optimization of oil & gas operations. Demand for oil and liquid gas products has grown exponentially to record levels.…
Logistics Optimization for Covid Vaccination
These slides give an overview of some of the challenges in logistics optimization for Covid vaccination. Robust optimization to find vaccination solutions by balancing the objectives of priority groups, location…
Overview of Port Optimization
One of the unexpected consequences of Covid19 is the increase of international maritime transportation. With more people working from home, the needs in all types of equipment has increased, from…
Modern Assembly Line Balancing Problems with Realistic Real World Constraints in CPO
The assembly-line balancing problem (today SALBP) is a bin-packing problem with precedence constraints, that was invented in the 50s to model and optimize the design of assembly lines. Because early…
Decompositions for Large Shift Scheduling Problem & Model Lifecycle
When shift scheduling problems become too large to be solved with a single model, an option often chosen by practitioners is to decompose them. Shift-scheduling MIP models contain a very…
Multi-objective Employee Shift Scheduling Problem in OPL/CPLEX
Shift-scheduling models are very common in workforce optimization. Employees are scheduled over one or multiple weeks, in order to cover the demand. Each employee has a contract that specifies the…
Modelling and Solving Workforce Scheduling Optimization Problems
Workforce scheduling is an essential optimization problem for any business that needs to cope with variable demand, be it during working hours, days of the week or annual seasons. Manufacturing…
Mathematical Optimization Explained to Scientists: Scheduling of a Subway Line
We were invited to give a talk about mathematical modeling of optimization problems to 4th year physics students. This material is based on that talk, and therefore intended to beginners…
Quay Cranes Scheduling Problem (QCSP) with CP Optimizer
The quay crane scheduling problem (QCSP) consists in scheduling quay cranes to load and unload containers from ships. Photo by Jacob Meissner on Unsplash Quay crane undoubtedly is the most…